<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2016 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: 流年 <liu21st@gmail.com>
// +----------------------------------------------------------------------

// 应用公共文件

function getIp() {
    static $realip = NULL;
    if ($realip !== NULL) {
        return $realip;
	}
	if (getenv('HTTP_X_FORWARDED_FOR')) 
		{ $realip = getenv('HTTP_X_FORWARDED_FOR');
	} elseif (getenv('HTTP_CLIENT_IP')) 
		{ $realip = getenv('HTTP_CLIENT_IP');
	}else{
		$realip = getenv('REMOTE_ADDR');
	}
    return $realip;
}

